<template>
<el-dialog
  title="提示"
  :visible.sync="dialogVisible"
  width="30%"
  :before-close="handleClose">
  <span>这是一段信息</span>
  <span slot="footer" class="dialog-footer">
    <el-button @click="dialogVisible = false">取 消</el-button>
    <el-button type="primary" @click="dialogVisible = false">确 定</el-button>
  </span>
</el-dialog>
</template>
<script>
export default {
    data() {
        return {
            dialogVisible: false,
        }
    },
    methods: {
        handleClose(done) {
            this.$confirm('确认关闭？')
            .then(_ => {
                done()
            })
            .catch(_ => {})
        },
    },
}
</script>